{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2017844",
    "entityType": "User",
    "nonce": "0x46e23a53d1a0aee12bdaea5bf255d2569482441a191525501d10a869d59af8f1",
    "signature": "0x69da4df9c359591c6db1525d14d33994192442b989ba24b10850e9dcdd0bb1a270e99e4d4f011ba5c3e97cb47de9dae7c7a30d51b48cf4da172bdc25eff361981c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}